No Sound Is Heard From The Speaker(s) (Display Is Normal)

Audio System Symptom Troubleshooting - No sound is heard from the speaker(s) (display is normal)

No sound is heard from the speaker(s) (display is normal)

NOTE:

- Check the vehicle battery condition first Battery Test.
- Check the connectors for poor connections or loose terminals.
- Set the fader and the balance positions to the center.
- Before doing the troubleshooting, do the Audio unit power switch will not turn on (No information display and no sound) troubleshooting Audio Unit Power Switch Will Not Turn On (No Information Display And No Sound).

1. Turn the ignition switch to ON (II).

2. Make sure the volume is not set to the MIN level, and check for sound in all modes (AM/FM, CD, XM, and USB).

Is there sound in all modes, and is the sound normal?

YES -

System is OK at this time. Check for poor connections at the audio unit, speakers, and stereo amplifier.

NO -

- If there is no sound in all modes:
- With premium audio, go to step 3.
- Without premium audio, go to step 4.

- If there is no sound in AM/FM mode, go to Poor AM or FM radio reception interference troubleshooting Symptom Troubleshooting.
- If there is no sound in CD mode, go to Audio disc does not play troubleshooting Symptom Troubleshooting.
- If there is no sound in the XM radio, go to Poor or no sound with XM radio troubleshooting Poor Or No Sound With XM Radio (Audio Unit Does Display XM Channels).
- If there is no sound in the USB mode, go to USB input sound is low or cannot be heard troubleshooting Symptom Troubleshooting.

3. On the steering wheel, check if the navigation talk command, and/or the HandsFreeLink talk command are set.

Are the navigation talk command and/or the HFL talk command function set?

YES -

Cancel the navigation talk command by pressing the navigation BACK button, and/or the HFL talk command, press the HFL BACK button, then recheck the function.

NO -

Go to step 4.

4. Do the Speaker Check Mode with Self-Diagnostic Function.

Did all speakers produce a tone?

YES -

Substitute a known-good audio unit; with navigation Audio Unit Removal/Installation (With Navigation), without navigation Audio Unit Removal/Installation (Without Navigation), and recheck. If the symptom/indication goes away, replace the original audio unit; with navigation Audio Unit Removal/Installation (With Navigation), without navigation Audio Unit Removal/Installation (Without Navigation).

NO -

Go to step 5.

5. Turn the ignition switch to LOCK (0).

6. Check the No. C15 (20 A) fuse in the passenger's under-dash fuse/relay box.

Is the fuse OK?

YES -

Go to step 7.

NO -

Replace the fuse, and recheck. If the fuse blows again, check for a short in the No. C15 (20 A) fuse circuit.

7. Measure the voltage between stereo amplifier connector B (18P) terminal No. 3 and body ground.





Is there battery voltage?

YES -

Go to step 8.

NO -

Repair an open in the wire between the No. C15 (20 A) fuse in the passenger's under-dash fuse/relay box and the stereo amplifier.

8. Turn the ignition switch to ON (II).

9. Measure the voltage between stereo amplifier connector A (24P) terminal No. 13 and body ground.





Is there battery voltage?

YES -

Go to step 11.

NO -

Go to step 10.

10. Measure the voltage between audio unit connector A (24P) terminal No. 21 and body ground.





Is there battery voltage?

YES -

Repair an open in the wire between stereo amplifier connector A (24P) terminal No. 13 and audio unit connector A (24P) terminal No. 21.

NO -

Replace the audio unit:

- With navigation Audio Unit Removal/Installation (With Navigation).
- Without navigation Audio Unit Removal/Installation (Without Navigation).

11. Measure the voltage between stereo amplifier connector A (24P) terminal No. 12 and body ground, and between stereo amplifier connector B (18P) terminal No. 1 and body ground.









Is there less than 0.2 V on both terminals?

YES -

Go to step 12.

NO -

Repair an open or high resistance in the wire(s) between stereo amplifier connector A (24P) and body ground (G501); with navigation, without navigation, and/or between stereo amplifier connector B (18P) and body ground (G502); with navigation, without navigation.

12. Turn the ignition switch to LOCK (0).

13. Check the speaker(s) with no sound for any damage.

Is there any damage?

YES -

Replace the speaker Speaker Test/Replacement, and recheck.

NO -

Go to step 14.

14. Remove the speaker(s) with no sound Speaker Test/Replacement, and disconnect its connector.

15. Check the speaker 2P connector for a loose or poor connection.

Reconnect the speaker connector, and recheck the symptom; is the condition still present?

YES -

Go to step 16.

NO -

Intermittent failure. Operation is normal.

16. Test the speaker(s) Speaker Test/Replacement.

Is the speaker OK?

YES -

- With premium audio, go to step 17.
- Without premium audio, go to step 21.

NO -

Replace the speaker(s) Speaker Test/Replacement.

17. Reconnect the speaker connector(s).

18. Disconnect stereo amplifier connector B (18P).

19. Check for continuity between stereo amplifier connector B (18P) and body ground according to the table.










Is there continuity?

YES -

Repair a short to body ground in the wire(s) between the stereo amplifier and the speaker(s).

NO -

Go to step 20.

20. Measure the resistance between each pair of speaker terminals at stereo amplifier connector B (18P) according to the table.









Is the resistance OK?

YES -

Go to step 28.

NO -

Repair an open or a short in the wire between the stereo amplifier and the speaker(s).

21. Reconnect the speaker connector(s).

22. Disconnect stereo amplifier connector B (18P).

23. Check for continuity between stereo amplifier connector B (18P) and body ground according to the table.










Is there continuity?

YES -

Repair a short to body ground in the wire(s) between the stereo amplifier and the speaker(s).

NO -

Go to step 24.

24. Measure the resistance between each pair of speaker terminals at stereo amplifier connector B (18P) according to the table.









Is the resistance OK?

YES -

Go to step 25.

NO -

Repair an open or a short in the wire between the stereo amplifier and the speaker(s).

25. Disconnect the tweeter 2P connectors.

26. Connect stereo amplifier connector B (18P) terminals with jumper wires as shown.






27. Check for continuity between the tweeter 2P connector according to the table.










Is there continuity?

YES -

Go to step 28.

NO -

Repair an open or a short in the wire between the stereo amplifier and the tweeter.

28. Disconnect audio unit connector A (24P), connector D (8P), and stereo amplifier connector A (24P).

NOTE: Eject all the CDs before disconnecting the audio unit and audio disc changer to prevent damaging the CD player's load mechanism.

29. Check for continuity between audio unit connector A (24P), connector D (8P), and stereo amplifier connector A (24P) according to the table.

















Is there continuity?

YES -

Go to step 30.

NO -

There is an open in the wire(s) between the audio unit and the stereo amplifier. Replace the affected shielded harness.

30. Check for continuity between stereo amplifier connector A (24P) and body ground according to the table.









Is there continuity?

YES -

There is a short to body ground in the wire(s) between the audio unit and the stereo amplifier. Replace the affected shielded harness.

NO -

Substitute a known-good stereo amplifier Service and Repair, and recheck. If the symptom/indication goes away, replace the original stereo amplifier Service and Repair. If the symptom/indication is still present, replace the audio unit; with navigation Audio Unit Removal/Installation (With Navigation), without navigation Audio Unit Removal/Installation (Without Navigation).